freetype: fix pcf fonts by upstream patches

The problem was uncovered by the last security patches.
Firefox seems to build and work fine.

Includes reverting 374a9cc16271, as this is a proper fix.
kernel: 3.17.6 -> 3.17.7
kernel: 3.14.26 -> 3.14.27
libnftnl: 1.0.2 -> 1.0.3
nftables: 0.3 -> 0.4
Revert "enable bash autocomplete by default"

This reverts commit ee8e15fe76a235ae3583d4e8cb4bb370f28c5eae. See
discussion at https://github.com/NixOS/nixpkgs/commit/ee8e15fe76a235ae3583d4e8cb4bb370f28c5eae.
vim-plugins: update
Revert "vim-plugins: update"

This reverts commit b736b20203960cc068092e5c5e3b693322fb1c43.

Because `vim-plugin-names-to-nix` doesn't create sha's.
Fix wml build, don't know why it worked before